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AWWA ACE56278
- Transport of Chromium (Cr(VI)) Through Reverse Osmosis (RO), Nanofiltration (NF), and Ultrafiltration (UF) Membranes
- Conference Proceeding by American Water Works Association, 06/16/2002
- Publisher: AWWA
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A bench-scale cross-flow flat-sheet filtration unit is being used to evaluateshort-term chromium (Cr (VI)) rejection by negatively charged membranes. Threemechanisms, solution diffusion (dominant in RO), size exclusion (dominant inNF), and electrostatic exclusion (dominant in UF), are being highlighted in thisstudy for chromium removal. In this study, RO, NF, and tight UF membraneshave been tested to evaluate the effects of pH and co- and counter ions on Cr(VI) rejection. Includes 9 references, tables, figures.
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